Heat-Set Insert, Insert Type Heat-Set Insert, System of Measurement Inch, Insert Diameter 15/32 in, Overall Length 9/16 in, Thread Size 5/16 In.-18, Thread Direction Right Hand, Thread Type Coarse, Material Brass, Shank Type Tapered, Tapered End Diameter 0.401 in, Flange Style Flush, Number of Vanes 2, Compatible Material , Drill Bit Size 0.401 in, Minimum Material Thickness 1/4 in, Maximum Hole Diameter 0.448 in, Features Pull-Out Resistance, Finish Plain